Flue cleaner



Nov. 15, 1932; J, H, KOHLER E-rAL 1,837,755

FLUE CLEANER Filed Feb. 24, 1930 I5 Sheets-Sheet l WITNESSES @KOM/L Nov. 15, 1932.

J. H. KOHLER ET AL FLUE CLEANER Filed Feb. 24. 1930 3 Sheets-Sheet 2 s R o T N E v m Qnrvglssss 1" Nov. 15, 1932.

J. H. KOHLER ET AL FLUE ACLEANER d Feb 24, 1950 3 ShemEs-Shee. l 5

File

WITNESSES www OW Patented Nov. 145, i932 JOHN rr. nonnen. .AND AUGUST SCHNEIDER, or P'ITTSBUBGH, PENNSYLVANIA.

BLUE CLEANER i Application led February 24,y 1930.' .Serial No. 430,581. l

Our invention pertains to Hue cleaners, and relates especially to devices of the character in which a jet of steam is directed towards the Hues of a boiler, and more particularly a locomotive boiler, to blow away the soot, cinders or the like which would otherwise become encrusted in the Hues and upon the Hue sheet.

In Hue cleaners of the above character, as heretofore constructed, steam supply pipes have been passed through the Water legs of the boiler, one at each side of the latter, and have been provided at their inner ends with jets for directing the steam against the flue sheet and into the Hues.

terial portion of the steam supply pipes projecting beyond the inner walls of the water legs would be soon burned out in use, it was necessary that the feed nozzles be kept in close proximity to the inner side walls of the water legs, and this, in turn, necessitated that the jets be moved in order that the steam might be directed first towards one section of the Hues and then towards another. Such movement of the jets has usually been accomplished by rocking them on an aXis, either manually or automatically, the devices being expensive to manufacture, and relatively complex. It has also been proposed to provide a series of steam pipes, equipped with jet nozzles, in such position with respect to the Hue sheet that jets of steam could be directed into the Hues so as to cover them all without the necessity of any oscillating or other movement of the steam pipes. However, when such devices were close enough to the Hue sheet, to be eHective, they were liable to burn out, and therefore impracticable.

It is the principal object of our invention to provide a Hue cleaner in which a steam jet, or jets, are directed into the Hues from a suiiciently short distance to permit the jets to be fully effective, in which the jet or jets will cover all of the Hues without the necessity of any moving parts, and which will not be liable to burn out in use. We attain this object by providing a steam pipes, having a nozzle, or nozzles, arranged in sufficient proximity -to the Hue sheet for the steam jets to be effective in performing Because any man pipe, or steam v their required operation, and so as to cover all of the Hues, and providing a water jacket for said steam pipe or pipes so as to prevent the same from becoming yburned out.

l/Ve have shown, by Way of example, in the accompanying drawings, and described in the following specification, three forms of Hue cleaner constructed in accordance with our invention. Itis to be understood, however, that the invention may be embodied in other forms, and that changes may be made in the forms described and shown withoutexceeding the scope thereof, as defined in the appended claim.

In the-drawings:

' Fig. 1 is a. sectional elevation of a locomotive boiler equipped with one form of Hue cleaner constructed in accordance with our invention; Y

Fig. 2 is a verticall section taken on the line 70 II-II of Fig.f1; f

Fig. 3 is an enlarged section takenon the line III-III of Fig..2, illustrating an appropriate construct-ion of water tube, steam pipe and steam nozzle; 7a

Fig. 4 is an end view of thenozzle;

Fig. 5 is a longitudinal section of a locomotive showing another'form of Hue cleaner constructed in accordance with our invention applied thereto; Y

Fig. 6 is asection on the line VI-VI of Fior. 5';

F ig. 7' showsin section still another form of Hue cleaner constructed in'accordance with our invention applied to a locomotive; and

Fig. 8 is a section on the line VIII- VIII ofFig?.

In all of therfigures of the drawings, 10 designates the fire box of a locomotive, at one end of which is the Hue sheet 11 from which lead the Hues 12. The steam head is designated by 13.

Referring particularly toFigs. 1 to 4, the embodiment therein shownincludes a water tube 14, of downwardly arched shape, which is Vsecured at each end to the crown sheet of the boiler, so as to makel communication, for the circulationof water, with the interior of the latter. Within the'water tube are disposed the legs 15 of a. pair: ofsteam pipes 16, 100

each of which connects with the steam head 13 and is adapted to receive steam therefrom.

ffl

Suitable valve means, actuated by a rod 17 adapted to be operated fromthe cab, controls the admission of steam from the head 13 to the pipe 16. The steam-pipe ends 15 are provided with outlets 18 which extend through V.the water tubefli', Vwhich. outlets terminate in steam nozzles. Conveniently the water tube 14 has welded thereto (Figs. 3 and 4) internally th surround the outlets 18 and receive nozzles 2O formed with vertically disposed jet open-l ings 21. The outlets 18 are welded to the water tube 14tand are beveled at their ends, as indicated at 22, so as to beengaged by correspondingly beveled portions of the nozzles 20. rl`hus, when the jets 2O are screwed iirmly into the collars 19, asealed joint will be made between suchjets and the outlets 18, rnaking the whole unit steam-tight, and at the same time permitting the jets to be removed, for cleaning purposes, when desired. l

The verticallyelongated shape of the oriyiices 21 of the nozzles 20 is such that these jets. will `cover an entire section of the flues from top to bottom, the section thus covered also being of considerable width. The number, and lateral disposition, of the jets is such that all of the flues will be covered.

1t will be noted that by placing the jets at the Vproper distancefrom the fiue sheet the full forcerof the issuing steam can be utilized in cleaning the fines, and that such cleanreadedl collarsf19 which-- siphon type, shown as having two siphon legs 28. In each end 29 of a steam pipe 30, equipped with suitable control valve means, and making connect-ion Vwith the steam head 13. Each of the steam pipe ends 28 is provided with a pair of nozzles 31 which Vproject forwardly through the front wall ofthe siphon leg, directing the steam jet into the flues, in the manner above described.

The combination with a locomotive boiler provided with a fire-box having a iue sheet at one end and a back-wall at the other end thereof, of a flue cleaner comprising steamcontaining means disposed in said fire-box and connected with the live steam space of said boiler, said steam-containing means having-nozzles disposed closer to said flue sheet than tosaid back-wall at a` sutiicient distance from said flue sheet and so directed that live steam issuing therefrom will impact against substantially all the flue sheet, and a waterjacket disposed within said fire-box and surrounding said steaml-containing means, for the purposes set forth. v ln'testimony whereof, we hereunto sign our names.

JOHN H. KOHLER v AUGUST SCHNEIDER.

ing of all the flues isY accomplishedwithout the necessity of providing anymoving parts. By thus :arranging the jets, with water cooling means for the steam supply pipes therefor, a very simple and eco'- nomical, and yet produced, Without there being any danger of the parts being burned out under the intense heat to which they are subjected.

. ln the embodiment of our invention shown in Figs. 5 and 6, utilization is made of the lwater tubes which are commonly employed for supporting of the ire box, although it may be' preferable to makesuch water tubes, as indicated at 23, of a somewhat larger diameter than is'usual. In

in combination efficient, flue cleaning device the refractory arch structure each ofthe arch tubes is disposed the end 24E selectively controlled.

Figs. 7 andS illustrate an application 'of our invention to alocomotive boilerV of vthe of the Siphon legs is disposed the 

